TF is a test harness used to drive Android automated testing. It runs on test hosts and monitors the connected devices, handling test scheduling & execution and device management.
Other test harnesses like Compatibility Test Suite (CTS) and Vendor Test Suite (VTS) use TF as a basis and extend it for their particular needs.
1. Create your change in Gerrit 2. Add the reviewer named "Tradefed Codereview" (email: firstname.lastname@example.org) 3. Review the code review guidance at go/tf-guidelines and go/tradefed-code-reviews 4. GWSQ should add a couple of people from the team to review your code and give feedback.
More information at: https://source.android.com/docs/core/tests/tradefed/
See more details about Tradefed Architecture at: https://source.android.com/docs/core/tests/tradefed/architecture
If you are a tests writer you should start looking in the test_framework/ component which contains everything needed to write a tests in Tradefed.